Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Allen Pais <allen.pais@xxxxxxxxxx>
---
arch/sparc/include/asm/spitfire.h | 14 ++++++++++++++
arch/sparc/kernel/head_64.S | 16 ++++++++--------
2 files changed, 22 insertions(+), 8 deletions(-)
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 1d8321c..9cc2afe 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -51,6 +51,20 @@
#define SUN4V_CHIP_SPARC_SN 0x8b
#define SUN4V_CHIP_UNKNOWN 0xff
+/*
+ * The following CPU_ID_xxx constants are used
+ * to identify the CPU type in the setup phase
+ * (see head_64.S)
+ */
+#define CPU_ID_NIAGARA1 ('1')
+#define CPU_ID_NIAGARA2 ('2')
+#define CPU_ID_NIAGARA3 ('3')
+#define CPU_ID_NIAGARA4 ('4')
+#define CPU_ID_NIAGARA5 ('5')
+#define CPU_ID_M6 ('6')
+#define CPU_ID_M7 ('7')
+#define CPU_ID_SONOMA1 ('N')
+
#ifndef __ASSEMBLY__
enum ultra_tlb_layout {
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 41a4073..ddb5e24 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -424,22 +424,22 @@ EXPORT_SYMBOL(sun4v_chip_type)
nop
70: ldub [%g1 + 7], %g2
- cmp %g2, '3'
+ cmp %g2, CPU_ID_NIAGARA3
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA3, %g4
- cmp %g2, '4'
+ cmp %g2, CPU_ID_NIAGARA4
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA4, %g4
- cmp %g2, '5'
+ cmp %g2, CPU_ID_NIAGARA5
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA5, %g4
- cmp %g2, '6'
+ cmp %g2, CPU_ID_M6
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M6, %g4
- cmp %g2, '7'
+ cmp %g2, CPU_ID_M7
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M7, %g4
- cmp %g2, 'N'
+ cmp %g2, CPU_ID_SONOMA1
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_SN, %g4
ba,pt %xcc, 49f
@@ -448,10 +448,10 @@ EXPORT_SYMBOL(sun4v_chip_type)
91: sethi %hi(prom_cpu_compatible), %g1
or %g1, %lo(prom_cpu_compatible), %g1
ldub [%g1 + 17], %g2
- cmp %g2, '1'
+ cmp %g2, CPU_ID_NIAGARA1
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA1, %g4
- cmp %g2, '2'
+ cmp %g2, CPU_ID_NIAGARA2
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA2, %g4
--
1.9.1
--
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